Example. A, a calendar year taxpayer, normally sells 100 head of beef cattle a year. As the result of drought conditions existing during 1976, A sells 135 head during that year. A realizes $35,100 of income from the sale of the 135 head. On August 9, 1976, as a result of the drought, the affected area was declared a disaster area thereby eligible for Federal assistance. The amount of income which A may defer until 1977, presuming the other provisions of this section are met, is determined as follows:
$35,100 (total income from sales of beef cattle)/135 (total number of beef cattle sold) * 35 (excess number of beef cattle sold, i.e. 135 - 100) = $9,100 (amount which A may defer until 1977)
26 C.F.R. §1.451-7